MP V-to-15V, 700mA, Bipolar Stepper-Motor Driver with Integrated MOSFETs
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- Iris Carpenter
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1 The Future of Analog IC Technology MP V-to-15V, 700mA, Bipolar Stepper-Motor Driver with Integrated MOSFETs DESCRIPTION The MP6507 is a bipolar stepper-motor driver with dual, built-in full-bridges consisting of N- channel power MOSFETs. It operates from a supply voltage range of 2.7V to 15V, and can deliver motor current up to 700mA per channel. The internal safety features include sinking and sourcing current limits implemented with external sensors, under-voltage lockout and thermal shutdown. An over-temperature output flag is available to indicate thermal shutdown. The MP6507 is available in 16-pin, 5.0mm 6.4mm TSSOP-EP and TSSOP, 3mm 3mm and 4mmx4mm QFN package with an exposed thermal pad on the back. FEATURES Wide 2.7V-to-15V Input Voltage Range Two Internal Full-Bridge Drivers Low MOSFET On Resistance (HS: 500mΩ; LS: 500 mω) Internal Charge Pump for the High-Side Driver Low Quiescent Current: 1.1mA Low Sleep Current: 1μA Thermal Shutdown and Under-Voltage Lockout Protection Over-Temperature Output Flag Thermally-Enhanced Surface-Mount Package APPLICATIONS POS Printers Video Security Camera Digital Still Cameras Battery Powered Toys All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VDD BST C2 0.1uF V IN VDD BST C2 0.1uF V IN C3 2.2uF MP6507 AIN2 C1 10uF C3 2.2uF MP6507 AIN2 C1 10uF Motor BIN1 SENA BIN1 SENA BIN2 RSENA WindingA BIN2 RSENA ON Fault OFF FAULT nsleep GND BOUT1 BOUT2 SENB WindingB Motor ON Fault OFF FAULT nsleep GND BOUT1 BOUT2 SENB Motor RSENB RSENB Stepper Motor Application Dual DC Motor Application MP6507 Rev
2 ORDERING INFORMATION Part Number Package Top Marking MP6507GF* TSSOP16-EP ( mm) MP6507 MP6507GQ** QFN16 (3 3mm) AEC MP6507GR*** QFN16 (4x4mm) MP6507 MP6507GM**** TSSOP16 ( mm) MP6507 * For Tape & Reel, add suffix Z (e.g. MP6507GF Z); ** For Tape & Reel, add suffix Z (e.g. MP6507GQ Z); ***For Tape & Reel, add suffix Z (e.g. MP6507GR Z); ****For Tape & Reel, add suffix Z (e.g. MP6507GM Z); TOP VIEW PACKAGE REFERENCE TOP VIEW nsleep SENA BOUT2 SENB BOUT1 FAULT 8 EXPOSED PAD ON BACKSIDE CONNECTED TO GND MP AIN2 VDD GND BST BIN2 BIN1 SENA BOUT2 SENB BOUT1 EXPOSED PAD ON BACKSIDE CONNECTED TO GND nsleep MP6507 FAULT BIN1 6 7 BIN AIN VDD GND BST TSSOP16-EP ( mm) TOP VIEW QFN16 (3 3mm)/(4x4mm) nsleep AIN2 SENA 3 14 VDD 4 13 GND BOUT SENB 6 11 BST BOUT BIN2 FAULT 8 9 BIN1 TSSOP16 MP6507 Rev
3 ABSOLUTE MAXIMUM RATINGS (1) Supply Voltage V IN V to 18V AOUTx Voltage V AOUTx V to V IN +1V BOUTx Voltage V BOUTx V to V IN +1V BST Voltage V BST V to V IN +7V Sense Voltage V SENx V to 0.5V All Other Pins V to 6.5V Junction Temperature C Lead Temperature C Continuous Power Dissipation (T A = +25 C) (2) QFN16 (3 3mm) W QFN16 (4 4mm) W TSSOP16-EP ( mm) W TSSOP W Operating Temperature C to +85 C Recommended Operating Conditions (3) Supply Voltage V IN...2.7V to 15V Output Current I A/BOUT mA Operating Junction Temp. (T J ). -40 C to +125 C Thermal Resistance (4) θ JA θ JC QFN16(3 3mm) C/W QFN16(4 4mm) C/W TSSOP16-EP( mm) C/W TSSOP C/W Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature T J (MAX), the junction-toambient thermal resistance θ JA, and the ambient temperature T A. The maximum allowable continuous power dissipation at any ambient temperature is calculated by P D (MAX) = (T J (MAX)-T A )/θ JA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB. MP6507 Rev
4 ELECTRICAL CHARACTERISTICS V IN =2.7V to 15V, T A = 25 C, unless otherwise noted. Parameter Symbol Condition Min Type Max Units Power Supply Input Supply Voltage V IN V nsleep=1, I I OU T=0, IN Quiescent Current Output disable 1.1 ma I IN_SLEEP nsleep=0, V IN =5V 1 µa Integrated MOSFETs Output On Resistance R HS R LS =500mA, V IN =5V T J =25 C =500mA, V IN =2.7V T J =25 C =500mA, V IN =5V T J =85 C =500mA, V IN =2.7V T J =85 C =500mA, V IN =5V T J =25 C =500mA, V IN =2.7V T J =25 C =500mA, V IN =5V T J =85 C =500mA, V IN =2.7V T J =85 C 460 mω mω 570 mω 700 mω 395 mω mω 490 mω 650 mω Body-Diode Forward Voltage V F =500mA 1 V Control Logic UVLO Threshold (Rising) V IN_RISE 2.5 V UVLO Hysteresis V HYS 70 mv Input Logic Low Threshold V IL 0.6 V Input Logic High Threshold V IH 2 V nsleep Logic, Low V SLEEP_L 0.4 V nsleep Logic, High V SLEEP_H 2 V Fault Output Logic, Low V FAULT_L Flag triggered by OTP 1mA Current. 200 mv Fault Output Leakage Current I LEAK_FAULT V FAULT =5V 1 µa Constant Off Time T OFF 27 µs Propagation Delay Time (On) T ON_DELAY INx high to OUTx on 10mA Source Current ns Propagation Delay Time (Off) T OFF_DELAY INx low to OUTx off ns MP6507 Rev
5 ELECTRICAL CHARACTERISTICS (continued) V IN =2.7V to 15V, T A = 25 C, unless otherwise noted. Parameter Symbol Condition Min Type Max Units Cross Over Delay Sleep Mode Wakeup Time Protection Circuitry Current Limit Sense Trip Voltage T CROSS T WAKE HS off to LS on or LS off to HS on for one bridge arm Sleep inactive high to full bridge turn on (V BST =100nF) ns 1.5 ms V TRIP mv Blanking Time T BLANK µs Thermal Shutdown 165 C Thermal Shutdown Hysteresis 15 C MP6507 Rev
6 TYPICAL CHARACTERISTICS MP6507 Rev
7 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Performance waveforms are tested on the evaluation board of the Design Example section. =500mA, F STEP =100Hz, Stepper Motor: L=2mH, R=10Ω, T A =25 C, unless otherwise noted. Steady State-Full Step V IN =15V Steady State-Half Step V IN =15V Power Ramp Up-Full Step V IN =15V 2V/div. 10V/div. 10V/div. IOUTA 500mA/div. 2V/div. 10V/div. 10V/div. IOUTA 500mA/div. 2V/div. 10V/div. 10V/div. IOUTA 500mA/div. Power Ramp Up-Half Step V IN =15V Sleep Entry-Full Step V IN =9V Sleep Recovery-Full Step V IN =9V 2V/div. 10V/div. 10V/div. IOUTA 500mA/div. SLEEP IOUTA 500mA/div. SLEEP IOUTA 500mA/div. Sleep Entry-Half Step V IN =9V Sleep Recovery-Half Step V IN =9V SLEEP SLEEP IOUTA 500mA/div. IOUTA 500mA/div. MP6507 Rev
8 PIN FUNCTIONS QFN16 Pin # TSSOP16 Pin # Name Description 1 3 SENA Channel A Sense. Connect to current sensor resistor for channel A. 2 4 Connect to motor winding A. 3 5 BOUT2 Connect to motor winding B. 4 6 SENB Channel B Sense. Connect to current sensor resistor for channel B. 5 7 BOUT1 Connect to motor winding B. 6 8 FAULT Logic low when in over-temperature fault condition. 7 9 BIN1 Gate signal input to control BOUT BIN2 Gate signal input to control BOUT BST Charge Pump Output. Connect a 10nF-to-100nF ceramic capacitor to Power Supply Input. Ranges from 2.7V to 15V GND Ground VDD Internal control and logic supply voltage. Connect a 2.2uF capacitor from VDD to GND. VDD is for internal use only. Do not connect any external load to VDD pin AIN2 Gate signal input to control Gate signal input to control nsleep Sleep Logic Input. Logic low for sleep mode and logic high to enable the device 16 2 Connect to motor winding A MP6507 Rev
9 BLOCK DIAGRAM C3 2.2uF 10kO Fault OFF ON V DD V DD AIN2 BIN1 BIN2 nsleep LDO Gate Signal Input Fault Report Control Logic Gate Driver ` Current Sense Gate Driver Charge Pump BST SENA BOUT1 R SENA BOUT2 Current Sense GND SENB RSENB WindingB C2 0.1uF WindingA Motor C1 10uF Figure 1: Function Block Diagram MP6507 Rev
10 OPERATION The MP6507 is a motor driver that integrates 8 N-channel power MOSFETs for dual, internal fullbridges with 700mA output current capability over an input voltage range of 2.7V to 15V. It can drive a stepper motor or two DC motors. The motor output current can be either controlled by an external pulse width modulator (PWM) or internal PWM current controller. The MP6507 includes the following fault protections: under-voltage lockout (UVLO) and over-temperature protection (OTP). In external PWM control mode, the winding s inductive current ramps up when the high-side MOSFET is on and freewheels during the highside MOSFET s off time to cause the recirculation current. There are two modes for this recirculation current: slow decay and fast decay, both of which are shown in Figure 3 for forward operation and Figure 4 for reverse operation. It also provides a low-power sleep mode. External PWM Current Control The motor current can be regulated by applying external PWM signals on the input pins, AIN2, BIN1 and BIN2. For phase A, the and AIN2 input pins control the state of the and ; similarly for phase B, thee BIN1 and BIN2 input pins control the state of the BOUT1 and BOUT2. Slow Decay Fast Decay Forward Figure 3: Forward Operation Gate Driver WindingA AIN2 VTRIP Motor SENA R SENA Figure 2: Full-Bridge Control Circuit Table 1 shows the input signal logic and bridge output state. Table 1: Full-Bridge Gate Logic A/BIN1 A/BIN2 A/BOUT1 A/BOUT2 L L High Impedance High Impedance L H GND H L GND H H GND GND Slow Decay Fast Decay Reverse Figure 4: Reverse Operation For slow decay mode, the current circulates through the two low-side MOSFETs. For fast decay mode, the current flows through the body diodes of the other diagonal two MOSFETS. To configure the MP6507 for fast decay mode, apply the PWM signal to one input pin and keep MP6507 Rev
11 the other input pin low; for slow decay mode, apply the PWM signal to one input pin and keep the other input pin high. See Table 2 for more configuration details and Figure 5 for detailed waveforms. Table 2: PWM Control A/BIN1 A/BIN2 Mode H (PWM) L Forward L (PWM) L Fast Decay L H (PWM) Reverse L L (PWM) Fast Decay H L (PWM) Forward H H (PWM) Slow Decay L (PWM) H Reverse H (PWM) H Slow Decay comparator shuts off the high-side MOSFET. The stepper motor s inductance causes the current to freewheel through the two low-side MOSFETs (slow decay). During this freewheeling time, the current decreases until the internal clock reaches its constant off time (typically 27µs). After that, the high-side MOSFET is enabled to increase the winding current again. The cycle then repeats. Calculate the current limit as: I V TRIP LIMIT = (1) RSENSE A/B IN1 0 A/B IN2 0 I A/BOUT1 0 A/B IN1 0 A/B IN2 0 I LIMIT I A/BOUT1 0 Forward Reverse Forward Reverse Fast Decay Slow Decay Figure 5: External PWM Current Control Waveform Internal PWM Current Control For this control method, the motor current is regulated by an internal constant off-time PWM current control circuit as the following: Initially, a diagonal pair of MOSFETs turns on so current can flow through the motor winding. The current increases in the motor winding, which is sensed by an external sense resistor (R SENSE ). During the initial blanking time T BLANK (3us), the high-side MOSFET always turns on in spite of current limit detection. When the voltage across R SENSE reaches the internal reference voltage threshold V TRIP (185mV), the internal current Forward T BLANK Slow Decay I LIMIT Reverse Constant off time T OFF Figure 6: Internal PWM Current Control Waveform Sleep Mode The MP6507 provides low-power standby sleep mode. Connect the nsleep pin to logic low to enable a low-power sleep state. In this state, the two full bridges are disabled and the internal circuits such as the gate drive, internal regulator, and charge pump all shut down. Connect the nsleep pin to logic high to wake up the MP6507 MP6507 Rev
12 from sleep mode, though there is a delay time of ~1ms until the internal circuitry stabilizes. Blanking Time There is usually a current spike during the switching transition due to the body diode s reverse-recovery current or the distributed inductance or capacitance. This current spike requires filtering to prevent it from erroneously shutting down the high-side MOSFET. An internal blanking time T BLANK blanks the output of the current sense comparator when the outputs are switched, which is also the minimum on time for high-side MOSFET. Enable If all the inputs (, AIN2, BIN1 and BIN2) are logic low, the MP6507 s outputs are disabled while the charger pump and internal regulator remain active. Synchronous Rectifier The MP6507 enters a synchronous rectifier (SR) mode during the constant off-time period when the current limit threshold is exceeded, and the load current freewheels in slow decay SR mode. In slow decay mode, the current freewheels through one low-side MOSFET and the body diode of the other low-side MOSFET to short the winding. The SR mode enables both two low-side MOSFETs, which feature a lower voltage drop and lower power dissipation during decay operation. Thermal Shutdown The junction temperature of the IC is internally monitored. If the junction temperature exceeds the threshold value (typically 165ºC), the converter is shut down (the fault pin goes low) and recoveries once the junction temperature drops to about 150ºC (15ºC hysteresis). UVLO protection The MP6507 has UVLO protection. When the exceeds the UVLO rising threshold, the MP6507 powers up. It shuts off when drops below the UVLO falling threshold. MP6507 Rev
13 APPLICATION INFORMATION Driver Mode: The MP6507 could be configured for both fullstep and half-step modes by sequentially energizing the two windings. Full-step drive energizes two winding phases at any given time. The stator windings are energized as per the sequence shown in Table 3. There are a total of four steps for one cycle in the sequence (5) : AB A B A B AB. Half-step energizes the stator windings as per the sequence shown in Table 4. There are a total of 8 steps for one cycle: AB B A B A A B B AB A. Figure 7 shows the operating waveforms for both full and half step drives. AIN2 BIN1 BIN2 H L H L H L H L Table 3 (6) : Full-Step Drive Sequence Sequence (Full Step) A + + B + + A B Table 4 (6) : Half-Step Drive Sequence Sequence (Half Step) Note: A B A B ) A means + between and for winding A, while A means - between and. The same applies to winding B. 6) + item is the selected winding voltage. + A OUT1-OUT2 0 -V IN + BOUT1-OUT2 0 -V IN AB AB AB AB AB B AB A AB B AB A AB Full Step Half Step Figure 7: Signal Logic Sequences for Full-Step and Half-Step MP6507 Rev
14 PCB Layout Guide The printed circuit board (PCB) should use a heavy ground-plane. The MP6507 must be soldered directly onto the board for better electrical and thermal performance. The sense resistors should be placed as close as possible to the part for accurate current detection. The MP6507 uses an exposed pad, which provides a path for enhanced thermal dissipation. The thermal pad should be soldered directly to copper on the PCB. Thermal vias are often used to transfer heat to other layers of the PCB. Design Example Below is a design example following the application guidelines for the specifications: Table 5: Design Example V IN 2.7V-15V 500mA The detailed application schematic is shown in Figure 9. The typical performance and circuit waveforms have been shown in the Typical Performance Characteristics section. For more possible applications of this device, please refer to related Evaluation Board Data Sheets. VDD BST C2 0.1uF V IN C1 2.2uF MP6507 C5 100nF C4 10uF + C3 100uF AIN2 BIN1 SENA BIN2 RSENA 400mO WindingA ON Fault OFF FAULT nsleep GND BOUT1 BOUT2 SENB WindingB Motor Top Layer RSENB 400mO Figure 9: Detailed Application Schematic Bottom Layer Figure 8: PCB Layout (TSSOP16-EP) MP6507 Rev
15 PACKAGE INFORMATION QFN 16 (3 3mm) PIN 1 ID MARKING PIN 1 ID SEE DETAIL A PIN 1 ID INDEX AREA BSC TOP VIEW BOTTOM VIEW 0.20 REF PIN 1 ID OPTION A 0.30x45º TYP. PIN 1 ID OPTION B R0.20 TYP SIDE VIEW DETAIL A NOTE: ) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX. 4) DRAWING CONFORMS TO JEDEC MO-220, VARIATION VEED-4. 5) DRAWING IS NOT TO SCALE RECOMMENDED LAND PATTERN MP6507 Rev
16 QFN 16 (4 4mm) PIN 1 ID MARKING PIN 1 ID SEE DETAIL A PIN 1 ID INDEX AREA BSC TOP VIEW BOTTOM VIEW 0.20 REF PIN 1 ID OPTION A 0.45x45º TYP. PIN 1 ID OPTION B R0.25 TYP SIDE VIEW DETAIL A NOTE: ) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX. 4) JEDEC REFERENCE IS MO-220, VARIATION VGGC. 5) DRAWING IS NOT TO SCALE RECOMMENDED LAND PATTERN MP6507 Rev
17 PACKAGE INFORMATION TSSOP16-EP ( mm) PIN 1 ID TOP VIEW RECOMMENDED LAND PATTERN SEE DETAIL "A" FRONT VIEW SIDE VIEW DETAIL "A" NOTE: BOTTOM VIEW 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 3) PACKAGE WITDH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.10 MILLIMETERS MAX. 5) DRAWING CONFORMS TO JEDEC MO-153, VARIATION ABT. 6) DRAWING IS NOT TO SCALE. MP6507 Rev
18 TSSOP TYP 0.40 TYP 0.65 BSC PIN 1 ID TYP 1 8 TOP VIEW RECOMMENDED LAND PATTERN MAX SEATING PLANE BSC SEE DETAIL "A" FRONT VIEW SIDE VIEW GAUGE PLANE 0.25 BSC 0 o -8 o DETAIL A NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.10 MILLIMETERS MAX. 5) DRAWING CONFORMS TO JEDEC MO-153, VARIATION AB. 6) DRAWING IS NOT TO SCALE. NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP6507 Rev
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The Future of Analog IC Technology MP2371 1.8A, 24V, 700KHz Step-Down Converter DESCRIPTION The MP2371 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves
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The Future of Analog IC Technology DESCRIPTION The MP8368 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves 1.8A continuous output current over a wide input
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MP9151 20, 4A Synchronous Step-Down Coverter DESCRIPTION The MP9151 is a synchronous rectified stepdown switch mode converter with built in internal power MOSFETs. It offers a very compact solution to
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The Future of Analog IC Technology DESCRIPTION The MP9 is a monolithic integrated stepdown switch mode converter with an internal power MOSFET. It achieves A continuous output current over a wide input
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MP2370 1.2A, 24V, 1.4MHz Step-Down White LED Driver DESCRIPTION The MP2370 is a monolithic step-down white LED driver with a built-in power MOSFET. It achieves 1.2A peak output current over a wide input
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The Future of Analog IC Technology DESCRIPTION The MP222 is an internally compensated 600kHz fixed frequency PWM synchronous step-down regulator. With a 3V to 6V bias supply (V CC ), MP222 operates from
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The Future of Analog IC Technology MP2488 200kHz, 55V Input, 2A High Power LED Driver DESCRIPTION The MP2488 is a fixed frequency step-down switching regulator to deliver a constant current of up to 2A
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The Future of Analog IC Technology MP9361 High Performance Regulated Charge Pump DESCRIPTION The MP9361 is a high performance, regulated charge pump converter. Its input voltage ranges from 2.8V to Vout.
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The Future of Analog IC Technology MP3352 60V, 2.5A Integrated Photo Flash Charger with IGBT Driver and Quench DESCRIPTION The MP3352 is a fast, highly efficient, precision high-voltage photo-flash charger
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The Future of Analog IC Technology DESCRIPTION The MP28490 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 5A continuous output current over a wide input
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SR2026 5A, 30V, 420KHz Step-Down Converter DESCRIPTION The SR2026 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 5A continuous output current over a
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MP1496S High-Efficiency, 2A, 16, 500kHz Synchronous, Step-Down Converter DESCRIPTION The MP1496S is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs.
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The Future of Analog IC Technology MP3209 1.4MHz, 350mA Boost Converter DESCRIPTION The MP3209 is a current mode step up converter intended for small, low power applications. The MP3209 switches at 1.4MHz
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The Future of Analog IC Technology MP20073 2A, 1.3V 6.0V DDR Memory Termination Regulator DESCRIPTION The MP20073 integrates the DDR memory termination regulator with the output voltage (VTT) and a buffered
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The Future of Analog IC Technology DESCRIPTION The MP2120 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator. MP2120 operates from a 2.7V to 5.5V input and generates
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The Future of Analog IC Technology MP2159 1A, 6, 1.5MHz, 17μA I Q, COT Synchronous Step Down Switcher In 8-pin TSOT23 DESCRIPTION The MP2159 is a monolithic step-down switch mode converter with built-in
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The Future of Analog IC Technology DESCRIPTION The MP2225 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to
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The Future of Analog IC Technology MP2313 High Efficiency 1A, 24V, 2MHz Synchronous Step Down Converter DESCRIPTION The MP2313 is a high frequency synchronous rectified step-down switch mode converter
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The Future of Analog IC Technology TM TM MP9.A, V,.MHz Step-Down Converter in a TSOT- DESCRIPTION The MP9 is a monolithic step-down switch mode converter with a built-in power MOSFET. It achieves.a peak
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The Future of Analog IC Technology DESCRIPTION The MP2161 is a monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 2A continuous output current from a 2.5 to 6
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The Future of Analog IC Technology MP3115 High-Efficiency, Single-Cell Alkaline, 1.3MHz Synchronous Step-up Converter with Output Disconnect DESCRIPTION The MP3115 is a synchronous, fixed frequency, current
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The Future of Analog IC Technology MP2249 1MHz, 6V, 3A, Low-Voltage Synchronous Step-Down Converter DESCRIPTION The MP2249 is a 1MHz constant frequency, current mode, PWM step-down converter. The device
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The Future of Analog IC Technology MP8051 Bridge Regulator Integrated MOSFETS and Schottky Diodes DESCRIPTION The MP8051 is a high-efficiency, monolithic, switching bridge regulator with two self-driven
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The Future of Analog IC Technology DESCRIPTION The MP38115 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator. MP38115 operates from a 1.1V to 5.5V input and generates
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